Question

我想从Alpha Vantage API中提取特定值，并希望在Sparkline图表中显示。

我有一个像 -

这样的JSON文件

    {
        "Meta Data": {
            "1. Information": "Intraday Prices and Volumes for Digital Currency",
            "2. Digital Currency Code": "BTC",
            "3. Digital Currency Name": "Bitcoin",
            "4. Market Code": "EUR",
            "5. Market Name": "Euro",
            "6. Interval": "5min",
            "7. Last Refreshed": "2018-05-05 09:30:00",
            "8. Time Zone": "UTC"
        },
        "Time Series (Digital Currency Intraday)": {
            "2018-05-05 09:30:00": {
                "1a. price (EUR)": "8213.91934125",
                "1b. price (USD)": "9833.29603162",
                "2. volume": "14118.15104183",
                "3. market cap (USD)": "138827958.61346000"
            },
            "2018-05-05 09:25:00": {
                "1a. price (EUR)": "8205.43730260",
                "1b. price (USD)": "9823.14175648",
                "2. volume": "14138.79003689",
                "3. market cap (USD)": "138887338.79747999"
            }
           .
           .
           .
        }
   }

我想只提取"1b. price (USD)": "9833.29603162"这个值，并将它们放在JS数组

中

var myvalues = [9833.296,9823.141,...];

我正在用来做其他一些任务。请帮忙！

Answer 1

如果要使用JSON提取特定数据，可以使用以下代码。对于每个库，您需要更改功能。库的名称以及您需要使用的功能名称在alpah vantage文档中。

https://www.alphavantage.co/documentation/#

    ### FUNADMENTAL DATA > COMPANY OVERVIEW ###
    # https://www.alphavantage.co/query?function=OVERVIEW&symbol=IBM&apikey=demo

base_url = 'https://www.alphavantage.co/query?'
params = {'function': 'OVERVIEW',
         'symbol': stock_ticker,
         'apikey': keys}
response_data_overview = requests.get(base_url, params=params)

data_overview_Name = response_data_overview.json()['Name']
data_overview_AssetType = response_data_overview.json()['AssetType']
data_overview_Description = response_data_overview.json()['Description']
data_overview_Exchange = response_data_overview.json()['Exchange']
data_overview_Currency = response_data_overview.json()['Currency']
data_overview_Country = response_data_overview.json()['Country']
data_overview_Sector = response_data_overview.json()['Sector']
data_overview_Industry = response_data_overview.json()['Industry']
data_overview_Address = response_data_overview.json()['Address']

从url中提取特定的json值并将其作为数组

1 个答案: